MOVES4.0.1 is a patch to MOVES4. It is not considered a new model for state implementation plan (SIP) and transportation conformity regulatory purposes. This update does not substantially change onroad criteria pollutant emission rates in MOVES4 at the County or Project scales, and it is not considered a new model for State Implementation Plan (SIP) and transportation conformity regulatory purposes.
We recommend downloading and using this new version if you have not yet used MOVES4, you are modeling GHG emissions using the Default Scale, you are applying temporal pre-aggregation at County Scale (note, not allowable for SIP or conformity purposes), or you need to generate speciated air quality inputs for multiple counties. Otherwise, MOVES4 modelers can decide whether to download the new version or continue to use MOVES4.0.0. For more information about regulatory uses of MOVES, see the MOVES4 Policy Guidance which applies to all versions of MOVES4.
A detailed description of the changes in MOVES4.0.1 is available at https://github.com/USEPA/EPA_MOVES_Model/milestone/6.
A model change bulletin is also maintained at https://www.epa.gov/moves/moves4-update-log.